Improvement in mole-plows



UNIT D STATES PATENT OFFICE.

ADAM MILLER, OF MOUNT PLEASANT, IOWA.

IMPROVEMENT IN MOLE-PLOWS.

Specification forming part of Letters Patent No. 25,845, dated October 18, 1859.

To all whom it may concern:

Be it known that I, ADAM MILLER, of Mount Pleasant, in the county of Henry and State of Iowa, have invented certain new and useful 1m provements in Modes ofDetachiug the Mole in Under-Drain Flows; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in the peculiararraugemeutand combination of those parts, which will be hereinafter particularly described, for forming a mode of detaching the mole in drain-plows, as will be set forth.

In the drawings, Figure 1 represents a side elevation. Fig. 2 is a side view of the colter. Fig. 3 is a perspective of the mole.

In the figures, A represents the beam, which is placed upon a truck when it is to be used. Upon the beam A is erected a support, D, and a curved standard, E.

B represents the colter, which is provided with a curved slot, at. The beam Ais connected to said colter by means of apin, 1', which passes through the slot a. A small frictionroller may be placed upon the pin '5, in order to make the pin traverse the slot, when necessary, more easily.

0 represents a lever, which has its fulcrum upon the support D. One end of this lever (J is secured to the top of the colter by means of a pivot at or. The other end of the lever is provided with a mortise through it, into which passes the curved standard E, said standard being provided with holes h h h, through which a key or pin passes and stations the lever at any desired point. The rear of the colter is provided with a series of staples, (marked 0 o 0,) through which staples a metallic rod, H, is made to pass.

I represents the mole, which is provided in front with two hooks, (marked m and n.) The hook m connects by means of a staple, 0, to or near the bottom of the colter at its rear. The

rod H, after passing through the staples 0 0 o,

passes into the hook it of the mole. At the rear of the mole are hooks whose points turn up, as seen. To these hooks the board protections, which are described in a previous application, are secured when it is desirable. The board protections spoken of were made in a A shape, with the angle up and the bottom open, and are intended to be drawn under ground and there left to remain to protect the ditch and prevent it from filling up.

The curve a in the colter is made to correspond with the circle described by the radius from 00 to 00, so that in raising and lowering the colter it will move in a directly vertical position.

In operating this machine the rod H passes into the hook at and secures the mole in the position seen in Fig. 1, ready for drawing. The board protections are to be secured to the hooks 8S and drawn under ground as the machine progresses. When it is desirable to detach the mole from the protection the rod H is drawn up so that it passes out of the hookn, and at the same time the pin '5 is drawn out. The mole then is secured at only one point, m, and the colter is secured only at or. The point of the mole is thus elevated and the hooks s s slip out from the fzlsteniugs on the protection, and it is thus freed from it while the said protection remains below the surface of the ground.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

The employment of the rod H, incombination with the colter B, provided with staples 0 0 0 0, and the mole I, provided with the hooks m, a, and s s, substantially as and for the purpose specified.

ADAM MILLER.

VVitne'sses:

O. M. ALEXANDER, A. A. YEATMAN. 

